撞回自己身上
同樣是那一下撞擊，只是這次挨的是自己：不是你打到誰，而是你撞上了地面，或撞上了一件事。
verb · C2
To crash or fall over while you are riding something such as a bike, a skateboard or a snowboard.
摔車、摔出去
核心畫面
One short, hard bump — and a noise much bigger than the damage. A fist on a nose, a board on the ground, a bag on a bench: the word can be read as that moment of contact written down. Every use points back to it, changing only who receives the bump and which way it travels.
biff 可以想成「短短的、砰的一下」。拳頭碰到鼻子、滑板撞上地面、袋子摔在長椅上，都是同一個瞬間。這個字的聲音比它…更多收起
biff 可以想成「短短的、砰的一下」。拳頭碰到鼻子、滑板撞上地面、袋子摔在長椅上，都是同一個瞬間。這個字的聲音比它造成的傷害還大，所以它總帶著漫畫感：熱鬧、好笑、多半沒真的出事。它各種用法的差別，只在這一下是打出去、還是撞回自己身上。From the word’s history
Wiktionary marks biff as onomatopoeic: the word started as the noise of the impact, and the verb, the noun and the comic-book shout are all that noise put to work.
Wiktionary 記 biff 是擬聲詞：先有拳頭打中東西的那一聲，動詞、名詞和漫畫裡的大字都是從那一聲來的。
Wiktionary extract supplied in packet, source_ref kaikki:3f6f69a190036ae4:1032555408, etymology_text "Onomatopoeic."
From the picture
用力扔出去
手臂快快揮出去那一下，跟揮拳是同一個動作；只是手裡多了東西，撞擊落在垃圾桶或隊友的手上。
verb · C2
To throw something away, or to throw it hard in some direction.
扔掉、用力丟
Also in this word
verb · C2
To hit someone hard with your closed hand, usually once and quickly.
揍、打一拳
noun · C2
A quick hard hit with a closed hand.
一拳
原始詞典資料11 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
biffnoun/bɪf/
- 1
informalA sudden, sharp blow or punch.
- "Hit him a biff," said the Big Man.
- 2
informalhobbieslifestylesportsA wipeout.
biffverb/bɪf/
- 1
informalTo punch or hit.
- ‘But ’twas Fitzgerald who was goin’ to biff Malone, man, can’t you understand?’ old Tom interrupted.
- 2
slangTo discard; to throw out; to throw away.
- 3
informalhobbieslifestylesportsTo wipe out; to faceplant; to fall.
- 4
informalTo mess up.
- 5
To move quickly.
biffintj/bɪf/
- 1
The sound of a person being punched or hit.
- Whap, Biff, Ooooof, Sock, Pow, Zok! Batman is back. Gotham City is again leaving its law and order in the hands of a man who wears plastic underpants over his tights.
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。